A strong team

Professional. Experienced. Close.

One team – one mission. In addition to tennis, one thing unites us above all: Stagnation is not an option! Every day, we work with passion and a lot of energy on the further development of our talents and our academy. We are convinced of our philosophy and convey it to the outside world.

An agile and diverse team introduces itself!

Our trainer team

Head coach Sascha Nensel coordinates with his team of coaches to develop a training concept for each individual talent. He regularly conducts a performance check to access your stage of development.
The coaching team cooperates closely to transfer the individual concept to the training ground. Everyone involved remains in constant communication to optimise your performance.

Babolat is our training ball sponsor and outfitter for our coaches. All academy members receive special discounts.


Head Coach

Born: 1970

Long-standing world-ranked and Bundesliga player

A-coach and holder of the PTCA gold badge, Certified Master Professional

Germany’s Coach of the Year in 2008

Former state coach and head coach of the German Tennis Federation (DTB) National Coaching Centre in Hannover

15-year top-level tour experience on the men’s and women’s circuit

Long-standing coach for Nicolas Kiefer and Julia Görges

Coach for Dusan Lajovic in 2016

Coach for Petra Martić and Tobias Kamke in 2017

2017/2018 Coach for Andrea Petkovic

2016–07/2018 Sporting Director of the Schüttler Waske Tennis University


MC, CSCS, Director of Fitness


Milos Galecic is a strength and conditioning coach from Belgrade, Serbia.

He completed his Masters of Science in Exercise Physiology and Sports Medicine at Western Michigan University.

He is a certified strength and conditioning specialist (CSCS) sine 2006.

Milos started his career at Western Michigan university as a division 1 strength and conditioning coach.

He has been involved in professional tennis since 2008, and his projects included Somdev Devvarman, Treat Huey, Dominic Inglot, Rajeev Ram, Aleksandra Wozniak, Dusan Lajovic and Petra Martic.

He was most recently the strength and conditioning consultant at the Alexander Waske Tennis University.


Head Trainer


Born: 1990

Former coach at the Agamov Tennis School.

Technically gifted player and coach

Responsible for coordinating the entire training operations and for organising trials and camps.

Fitness coach

Club trainer and right-hand man for Sascha Nensel

Statement by Nensel:
“Artjom has immense potential as a tennis coach. He has all the skills that a great coach needs. Technical expertise, fantastic ability as a player and a particular passion for the sport. He comes on in leaps and bounds every week by virtue of his hunger for success and his drive to do a great job. One day Artjom will be among the best coaches in Germany and is certain to feature at the major tournaments in international tennis over the coming years. I am really proud that Artjom is working in Peine. I will support his development in any way possible and really hope that one day he will celebrate major success with our young players. We would never have expected him to develop our players so quickly and successfully with the trainer team here at our academy.”

Samantha Brdys

Junio Coach

Born: 1994

Ex-player of the nensel academy

Supports the coaches in the tennis and fitness units

Responsible for the entire boarding school operation

An important component in the academy rental team due to its versatility

Trust is a crucial building block for long-term, successful collaboration!

Our Physio

Your physical is of elementary importance for your target of becoming a tennis professional. You therefore have a physiotherapist at your disposal who works in competitive sports.

Dorian Renz


Dorian is there to help you in emergencies. We will organise a timely appointment in one of his private practices in Isernhagen or Hannover.


Physiotherapist, M.Sc. for musculoskeletal physiotherapy

Osteopathy according to Typaldos (FDM IC Certificate)

Manual therapy (OMT qualification)

OSB sporty physiotherapy

Professional Career
2006–2007 Physiotherapy Beate Renz in Wanzleben

2007–2010 Therapy Centre Langenhagen

2010–2015 Hannover Medical School

2011–2015 Technical Director of Physiotherapy at the Olympic Base in Lower Saxony

since 2015 Self-employed with two joint practices

Treated Julia Görges (Wimbledon 2012, Stuttgart 2013, Roland Garros 2013 and Roland Garros 2014) and additional top-level athletes from other sporting disciplines.

the team
behind the team

Passion is the key to success! Behind every success is a strong team! By providing the ideal condition, we seek to empower every talent to fulfil their dream: to become professionals! Values such as trust, reliability, patience and dedication are always our top priorities.

Stephanie Riedel

Executive Partner


Born: 1968

Sport Career
First experience in hockey and tennis

1984–1990 Women’s Hockey Bundesliga (HC Hannover)

1990–1997 Hockey Regionalliga (HC Hannover) and Oberliga (DTV Hannover)

1988 University entrance qualifications

1988–1990 Work for various companies

1990-1992 Qualification as media designer

1992-1997 Self-employment: foundation of the advertising agency mac2 Graphics GbR

1997 Foundation of SR Riedel GbR

2015 Foundation of the nensel academy Nensel-Riedel GbR with Sascha Nensel

Digital Media Design

Stephanie Benkendorf

Digital Media Design


Born: 1983

Qualified media designer for digital and print media, specialised in design and technology.

Has more than a decade of experience working for small and large companies from a variety of industries in the area of print and digital media.

Lena Riedel

Social Media


Born: 1997

B. A. Social and organizational education

Master in Organization, Governance, Education

Also works in a start-up in the training industry and is responsible for the text design and social media presence at the nensel academy.

Growing up in hockey and now gaining a foothold in the world of theater.